Tornado and Hail in Oklahoma, May 20, 1989

Name: Tornado and Hail in Oklahoma, May 20, 1989
Start: 1989-05-20T00:15
End: 1989-05-20T08:05
Location: Oklahoma

May 20, 1989 · NWS OKC · 29 events in 12 counties and zones

27 hail, 1 tornado, 1 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 29

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Event by event

27 hail, 1 tornado, 1 thunderstorm wind. Local standard time, as filed.

Hail, Wagoner

When: May 20, 12:15 AM CST
Where: Wagoner County
Measured: 0.88 in hail
Coordinates: 35.820, -95.570

Hail, Okmulgee

When: May 20, 12:24 AM CST
Where: Okmulgee County
Measured: 1 in hail
Coordinates: 35.780, -96.020

Hail, Muskogee

When: May 20, 12:40 AM CST
Where: Muskogee County
Measured: 0.75 in hail
Coordinates: 35.820, -95.700

Hail, Muskogee

When: May 20, 1:00 AM CST
Where: Muskogee County
Measured: 0.75 in hail
Coordinates: 35.650, -95.650

Hail, Okmulgee

When: May 20, 1:00 AM CST
Where: Okmulgee County
Measured: 0.75 in hail
Coordinates: 35.730, -95.980

Tornado, Muskogee

When: May 20, 1:15 AM CST
Where: Muskogee County
Rating: F0
Path length: 0.2 mi
Path width: 10 yd
Coordinates: 35.770, -95.680

Hail, Okmulgee

When: May 20, 1:15 AM CST
Where: Okmulgee County
Measured: 1 in hail
Coordinates: 35.680, -95.850

Hail, Muskogee

When: May 20, 1:30 AM CST
Where: Muskogee County
Measured: 1 in hail
Coordinates: 35.650, -95.650

Hail, Muskogee

When: May 20, 1:30 AM CST
Where: Muskogee County
Measured: 0.75 in hail
Coordinates: 35.820, -95.670

Hail, Mayes

When: May 20, 1:30 AM CST
Where: Mayes County
Measured: 0.75 in hail
Coordinates: 36.080, -95.350

Hail, Muskogee

When: May 20, 2:10 AM CST
Where: Muskogee County
Measured: 1.75 in hail
Coordinates: 35.570, -95.650

Hail, Okmulgee

When: May 20, 2:10 AM CST
Where: Okmulgee County
Measured: 0.88 in hail
Coordinates: 35.670, -95.850

Hail, Muskogee

When: May 20, 2:55 AM CST
Where: Muskogee County
Measured: 1.75 in hail
Coordinates: 35.650, -95.650

Hail, McIntosh

When: May 20, 3:00 AM CST
Where: McIntosh County
Measured: 0.75 in hail
Coordinates: 35.430, -95.780

Hail, Sequoyah

When: May 20, 3:02 AM CST
Where: Sequoyah County
Measured: 0.75 in hail
Coordinates: 35.500, -94.970

Hail, Okmulgee

When: May 20, 3:05 AM CST
Where: Okmulgee County
Measured: 1.75 in hail
Coordinates: 35.770, -96.020

Hail, Adair

When: May 20, 3:06 AM CST
Where: Adair County
Measured: 0.75 in hail
Coordinates: 35.820, -94.630

Hail, Cherokee

When: May 20, 3:20 AM CST
Where: Cherokee County
Measured: 1 in hail
Coordinates: 35.700, -94.900

Hail, Adair

When: May 20, 3:30 AM CST
Where: Adair County
Measured: 0.75 in hail
Coordinates: 35.650, -94.580

Hail, Creek

When: May 20, 4:00 AM CST
Where: Creek County
Measured: 0.88 in hail
Coordinates: 35.780, -96.200

Hail, Okmulgee

When: May 20, 4:00 AM CST
Where: Okmulgee County
Measured: 0.75 in hail
Coordinates: 35.820, -96.070

Hail, McIntosh

When: May 20, 4:00 AM CST
Where: McIntosh County
Measured: 1 in hail
Coordinates: 35.270, -95.780

Hail, Sequoyah

When: May 20, 4:12 AM CST
Where: Sequoyah County
Measured: 0.75 in hail
Coordinates: 35.430, -94.800

Hail, Sequoyah

When: May 20, 4:23 AM CST
Where: Sequoyah County
Measured: 0.75 in hail
Coordinates: 35.420, -94.600

Hail, Le Flore

When: May 20, 4:41 AM CST
Where: Le Flore County
Measured: 0.88 in hail
Coordinates: 35.230, -94.630

Hail, Le Flore

When: May 20, 5:15 AM CST
Where: Le Flore County
Measured: 0.75 in hail
Coordinates: 34.970, -94.820

Hail, Pushmataha

When: May 20, 6:20 AM CST
Where: Pushmataha County
Measured: 0.75 in hail
Coordinates: 34.620, -95.270

Thunderstorm Wind, Pushmataha

When: May 20, 6:45 AM CST
Where: Pushmataha County
Measured: 52 kt (60 mph)
Coordinates: 34.200, -95.220

Hail, McCurtain

When: May 20, 8:05 AM CST
Where: McCurtain County
Measured: 0.88 in hail
Coordinates: 34.120, -95.150

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Oklahoma in 1989 Every state in 1989 This day in weather history The tornado archive for Oklahoma, 1989 Warnings in Oklahoma, May 1989

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 10103010, 10103011, 10103012, 10103013, 10103014, 10103015, 10103016, 10103017, 10103018, 10103019, 10103020, 10103021, 10103022, 10103023, 10103024, 10103025, 10103026, 10103027, 10103028, 10103029, 10103030, 10103886, 10103887, 10103888, 10103889, 10103890, 10103891, 10103892, 10103893.